Roller side bearing for railway-cars.



J. F. OGONNOR.

ROLLER SIDE BEARING FOR RAILWAY CARS.

APPLICATION FILED JUNE 23, 1911,

1,096,939, I PatentedMay19,1914.

FL?! v /z Z4 VF-mill v 1 v UNITED STATES 101m 1*. o'conno'n; or cmcaco, ILLINOIS, ASSIGNOR TO WILLIAM H.

' CHICAGO,

PATENT o FIoE.

MINER, OF ILLINOIS.

zoLLnn- SIDE BEARING son runway-cans.

Specification of Letters Patent.

Patented May 19, 1914.

Application filed June 23, 1911. Serial N 0. 535,035.

T0211! whom. it may concern: Be it known that I. JOHN F. OCoxxon,

a citizen of the l'uited States, residing in Chicago, in. the .countyof Cook and State of Illinois, have invented a new and useful Im- 1 provement in Roller Side Bearings for Railway-Cars, of which the following is a specitication.

- Fig. 2.

This invention relates to an improvement in roller side bearings for railway cars 1 In the-accompanying drawings forming a part of this specification, Figure 1 is a front elevation of a truck and body bolster of a railway car having roller side bearings embodying my invention. Fig. 2 is a top or plan View of the truck bolster showing the roller side bearings. Fig. 3 is a section on the line 33 of Fig. 2 on a somewhat larger scale. Fig. 4,- -also upon a larger scale, is a vertical section on the line 4-l of said In, said drawing ll represents the truck I bolster and 12 its opposing body bolster, the

former secured to the truck and the latter to the car. Upon the body bolster are the plane bearing plates 13, 13.

truck bolster are the bearing plates 14. Be-

tween these two sets of plates 13 and 14: ride the rollers 15. Built up around ,each bearing plate 14 is a guard box 16, the sides of which are'high enough so that the roller cannot escape. when between the two bolsters.

To automatically center each roller itis furnished with a radially arranged spig ng axle 17 held at the inner end 18- by'a pro ection .19 from the guard box 16, andat its other end is inserted inan axialopeuiiigQQ in the roller 15. 'lhisaxial opening is enlarged or flared at 21 on' the inner face of the roller to accommodate the moyeinent; and for the same reason the holder 19 is flared at22 ..t

- its outer end. The cayity 2;-3 "in'the holder 19 passes entirely through. said holder and the spring 17 may be inserted througlrthe end of the holder and securedjn place by' the cotter pin 24; r p

I prefer that-the springl'? shall be a v coiled spring, such as is shown in the draw-. ling since this form adaptsitselfmost readily to application in this connectlonu In operation the roller be ri gs W re brought into playupon the swiv 'ng of the truck, andconsequently one orother of'the.

rollers is always free to adjust itself to a central position while the we ght is upon the Secured to the.

other roller. This adjustment to the central pos tion is performedby the tendency of the leased from fiexure. This self adjusting roller IS not only effective and'durable, but it is also simple and cheap in construction.

spring arm is shorter than the radius of the arc ofrotation-ofthe roll, the latter, by reason of the flexibility of the arm on which itis carried, will always adjust itself so that ment 'of the movement of the roll tofit its position on the greater arc, said roll may be made either cylindrical or in the form of the radii of the greater arc, but owing to the ngedging action and the consequent end thrust of the conical form the cylindrical roll is generally to be preferred. I

"Having described the invention, claim is made as follows:-

combination: a roller; a retaining member for the roller; and a spring attached to said member and on which the roller is mounted, said spring forming a flexible axle for the roller thereby adapting the roller to rotate and move bodily, the spring acting to return it 'to normal position. substantially as specified. 2. The combination with a truckand a 'body' bolster. each hating a bearing plate thereon, f an interposed rollcnand a radially arranged spring axle. said spring axle being mounted on spid spring angle, substantiallyas specified. A

13. The combination with a truck and a body bolster. of a box-shaped bearing OIl Sfild bolster. a spring axle. and a roller,'said iroller being mounted on said axle, and the box-shaped bearing having a radial projectially as specified.

body bolster, of a box-shaped bearing on said tion for containing said spring axle. substansprmg to return to a straight line when re- Although the radius of the i fixible or its axis will be at all times radial to the frust-um of a cone inclosed between two -1. A side bearing for cars including, in

consisting of a coiled spring. and said roller 4. The combination with a truckanda a spring Wismm a rouer mounted 1113; said bolvslmped bearing hmil pmjeciion provided with a cav v i'herein. cavity beingadapted to'conmin a gu'nlion of the spring :u-zle and said gml ier having; :1 flan-ed cavity therein for i-eiving one (1 oi the spring axle, substan- 1e combination with av truck and a Mister oi bore-shaped bearing un said F i I 

